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Structure of an acidic glycan from the reference strain for Serratia marcescens serogroup O22
1School of Chemistry, University, Hull, United Kingdom.
Carbohydrate Research
|July 2, 1992
Abstract:
In addition to a neutral glycan, lipopolysaccharide extracts from the reference strain for Serratia marcescens serogroup O22 contain an acidic polymer which probably defines the serogroup and is of microcapsular origin. The polymer is doubly branched with a heptasaccharide repeating unit and a galactan backbone. By means of spectroscopic and degradative studies, the structure of the repeating unit was established as that shown. [formula: see text]